Handbook of meat inspection . us tul)erculosis Ol L-attle may exceptionally occur on tbe pleura oi (pearl disease). cattle. Tbe iufection arises eitber from tbe lung or, in pleura pbreuica, from tbe liver. In tbe latter case actinomycotic tissue penetrates tbe diapbragm. Wlien all otber cbaracters are disregarded, actinomycotic tubercles are distiu- guisbed by tbe soft, myxoma-like oozing surface on section, sbowiug uumerous yellow granules, as well as by tbe strongly developed neomorpbs of connective tissue in tbe neigbborbood of all otber similar alterations. In cbickens and pbeasants, tbe a
Handbook of meat inspection . us tul)erculosis Ol L-attle may exceptionally occur on tbe pleura oi (pearl disease). cattle. Tbe iufection arises eitber from tbe lung or, in pleura pbreuica, from tbe liver. In tbe latter case actinomycotic tissue penetrates tbe diapbragm. Wlien all otber cbaracters are disregarded, actinomycotic tubercles are distiu- guisbed by tbe soft, myxoma-like oozing surface on section, sbowiug uumerous yellow granules, as well as by tbe strongly developed neomorpbs of connective tissue in tbe neigbborbood of all otber similar alterations. In cbickens and pbeasants, tbe air sac mite (Cyfodites nudus) is frequently found in tbe air sacs of tbe tborax, neck and abdomen. Tbe mites are visible to tbe naked eye as yellowisb or brownisb points. Tbey may cause Inflammatory alterations of tbe membranes of tbe air sacs in tbe form of yellow gelatinous effusions or mem- branous deposits (Kitt). In cases of extensive invasion of tbe lungs aud tracbea, deatb may result from iuflammation of tbese air pas-. 336 NOTEWORTHY ORGANIC DISEASES sages and from asphyxiation (Gerlach, Zschokke, Megnin). Holzen-dorff also found the mites in miliary abscesses of the liver, lungsand kidneys of chickens. Parasites are only occasionally found in the sub-pleural one iustance the author found under the pleura of a bog anEcldnococcus miütüocularis -which presented the appearance of Fig. 83.
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